#!/bin/bash -xe

git_export () {
    if [ -e "$1" ]; then
	rm -rf "$1"
    fi
    mkdir -p "$1"
    git archive --format=tar "$2" | tar -C "$1" -xf - 
}

here="$(mktemp -d)"
cd $here

if [ x"$1" = x'test' ]; then
  real=false
else
  real=true
fi

me=`whoami`
repo=~/src/klibc/klibc/.git
signkey=AC2B29BD34A6AFDDB3F68F35E7BFC8EC95861109
releasedir=~/src/klibc/release/

# Make sure the repo is up to date
GIT_DIR="$repo" git fetch -f

# Get a snapshot of the top of the repository
gitdir="$here"/git
git clone -s -l "$repo" "$gitdir"
cd "$gitdir"

version=`cat $gitdir/usr/klibc/version`
major=`cut -d. -f1 < $gitdir/usr/klibc/version`
minor=`cut -d. -f2 < $gitdir/usr/klibc/version`
subminor=`cut -d. -f3 < $gitdir/usr/klibc/version`
tag=klibc-$version
now=`date -R`

umask 022

if $real; then
    unset GPG_AGENT_INFO
    eval $(gpg-agent --daemon --quiet --no-use-standard-socket --keep-tty --keep-display --sh)
    git tag -u "$signkey" -f -m "klibc $version released on $now" "$tag"
fi

exportdir="$here"/"$tag"
rm -rf "$exportdir"

git_export "$exportdir" HEAD
cd $exportdir

make release

cd ..

tar cvvf klibc-$version.tar klibc-$version
if $real; then
    gpg -u "$signkey" --use-agent -a -b -o klibc-$version.tar.sign \
	klibc-$version.tar
fi	
gzip -9 klibc-$version.tar

if $real; then
  cp klibc-$version.tar.gz klibc-$version.tar.sign "$releasedir"

  whereto=/pub/linux/libs/klibc/$major.$minor
  kup mkdir "$whereto"
  kup put klibc-$version.tar.gz klibc-$version.tar.sign "$whereto"/

  # Bump the version number
  (
      cd "$gitdir"
      upstream=$(GIT_DIR="$repo" git config remote.origin.url)
      git remote add upstream "$upstream"

      newsubminor=`expr 0$subminor + 1`
      newversion=$major.$minor.$newsubminor
      echo $newversion > usr/klibc/version
      git add usr/klibc/version
      git commit -m "[klibc] $version released, next version is $newversion"
      git push upstream refs/heads/master refs/tags/"$tag"
   )
fi